Vehicle underbody shield and vehicle

Abstract

Embodiments of the present application provide a vehicle underbody panel and a vehicle. The vehicle underbody panel has a bottom surface exposed to one side surface of the bottom of the vehicle. The vehicle underbody panel has a middle region and two raised regions. The two raised regions are respectively located at two ends of the vehicle underbody panel along the width direction of the vehicle. The middle region is located between the two raised regions. The bottom surface of the raised region is higher than the bottom surface of the middle region. In the vehicle underbody panel and the vehicle, the bottom surface of the raised region is set to be higher than the bottom surface of the middle region. On the one hand, this helps to guide the airflow on both sides of the vehicle bottom to separate in advance at the raised region, thereby reducing the impact on the rear structure (such as a swing arm). On the other hand, this helps to accelerate the airflow at the bottom of the middle region (the middle region has a smaller ground clearance in actual use). In summary, this helps to reduce the drag coefficient of the vehicle.

Description

Technical Field

[0001] Embodiments of this application relate to the field of vehicle technology, and more particularly to a vehicle underbody protection plate and a vehicle. Background Technology

[0002] The underbody protection plate is an important component installed at the bottom of the vehicle. It plays a role in protecting vehicle components (such as the suspension system), preventing foreign objects from entering, reducing noise transmission, and improving driving safety.

[0003] In addition, the underbody protection plate of the vehicle also has the function of guiding airflow. However, in related technologies, the underbody protection plate of the vehicle has poor ability to guide airflow, which leads to an increase in wind resistance of the vehicle. Utility Model Content

[0004] In view of this, the present application aims to provide a vehicle underbody protection plate and a vehicle that can reduce wind resistance during vehicle operation.

[0005] The first aspect of this application provides a vehicle underbody protection plate, wherein the surface of the vehicle underbody protection plate exposed on one side of the vehicle bottom is the bottom surface, the vehicle underbody protection plate has a middle area and two raised areas, the two raised areas are respectively located at both ends of the vehicle underbody protection plate along the width direction of the vehicle, the middle area is located between the two raised areas, and the bottom surface of the raised areas is higher than the bottom surface of the middle area.

[0006] In some embodiments, the bottom surface of the raised area gradually rises in a direction away from the intermediate region.

[0007] In some embodiments, the bottom surface of the intermediate region is a plane.

[0008] In some embodiments, the rear end of the vehicle underbody protection plate forms a first connecting edge, and the opposite ends of the first connecting edge along the vehicle width direction are both located within the boundary of the intermediate area.

[0009] In some embodiments, the maximum height difference between the bottom surface of the raised area and the bottom surface of the intermediate area is 10-20 mm.

[0010] In some embodiments, along the vehicle's longitudinal direction, the bottom surface of the front end of the raised area is higher than the bottom surface of the rear end of the raised area.

[0011] In some embodiments, the bottom surface of the raised area gradually rises along the direction from the front end to the rear end of the vehicle underbody protection plate; and / or the maximum height difference between the bottom surface of the rear end of the raised area and the bottom surface of the front end of the raised area is 5-10 mm.

[0012] In some embodiments, the front end of the vehicle underbody protection plate forms a second connecting edge along the vehicle width direction. The second connecting edge includes a middle section and two inclined sections. The two inclined sections are respectively connected to opposite ends of the middle section along the vehicle width direction. The inclined sections extend obliquely towards the front in a direction away from the middle section.

[0013] A second aspect of this application provides a vehicle comprising: a vehicle underbody protection plate as described in the first aspect of this application; a rear suspension assembly and a battery pack, respectively connected to opposite ends of the vehicle underbody protection plate along the longitudinal direction of the vehicle; and wheel covers, respectively connected to opposite ends of the vehicle underbody protection plate along the width direction of the vehicle.

[0014] In some embodiments, the rear suspension assembly includes a rear suspension guard plate and a control arm. The rear suspension guard plate is connected to the vehicle underbody protection plate. The rear suspension guard plate, the wheel arch, and the vehicle underbody protection plate enclose an installation space. The control arm is movably disposed in the installation space. In the orthographic projection along the vehicle's longitudinal direction, the projection of the raised area of ​​the vehicle underbody protection plate at least partially overlaps with the projection of the control arm.

[0015] In the vehicle underbody protection plate and vehicle of this application embodiment, by setting the bottom surface of the raised area to be higher than the bottom surface of the middle area, on the one hand, it helps to guide the airflow on both sides of the vehicle underbody to separate in advance at the raised area, reducing the impact on the rear structure (such as the swing arm), and on the other hand, it helps to accelerate the airflow at the bottom of the middle area (the middle area has a smaller ground clearance in actual use). Overall, it helps to reduce the drag coefficient of the vehicle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the vehicle underbody protection plate according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram illustrating the usage scenario of the vehicle underbody protection plate according to an embodiment of this application;

[0018] Figure 3 for Figure 2 Schematic diagram of AA section;

[0019] Figure 4 for Figure 2 A schematic diagram of the BB cross section.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Vehicle underbody protection plate; 1a. Middle area; 1b. Raised area; 11. First connecting edge; 12. Second connecting edge; 121. Middle section; 122. Inclined section; 13. Third connecting edge; 2. Wheel cover; 3. Rear suspension assembly; 3a. Installation space; 31. Rear suspension protection plate; 32. Swing arm; 4. Battery pack. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0024] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0026] In the description of this application, the orientation or positional relationship of "vehicle width direction", "vehicle front-rear direction", and "vehicle height direction" is based on the orientation or positional relationship shown in the accompanying drawings. Among them, "vehicle width direction" is the direction indicated by arrow L1 in the accompanying drawings, "vehicle front-rear direction" is the direction indicated by arrow L2 in the accompanying drawings, and "vehicle height direction" is the direction indicated by arrow L3 in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] An embodiment of this application provides a vehicle underbody protection plate 1, referring to... Figure 1 and Figure 2 In this application embodiment, the vehicle underbody protection plate 1 specifically refers to the protection plate structure installed at the bottom of the vehicle.

[0028] In the relevant description of this application, the vehicle height direction refers to the direction of gravity during normal vehicle operation, where the bottom specifically refers to the side closest to the ground and the top refers to the side furthest from the ground. The vehicle front-rear direction specifically refers to the distribution direction of the vehicle's front and rear, where the front side refers to the side closest to the front of the vehicle and the rear side refers to the side closest to the rear of the vehicle. The vehicle width direction refers to the direction perpendicular to both the vehicle height direction and the vehicle front-rear direction.

[0029] It should be noted that the vehicle underbody protection plate 1 provided in this application embodiment can be installed at any position on the bottom of the vehicle. As an example, the vehicle underbody protection plate 1 is installed between the battery pack 4 and the rear suspension assembly 3 along the front-rear direction of the vehicle, and the two ends of the vehicle underbody protection plate 1 along the width direction of the vehicle are respectively connected to two wheel arches 2. This application mainly uses this example to illustrate the structure and beneficial effects of the vehicle underbody protection plate 1.

[0030] The specific structural forms of the battery pack 4, wheel cover 2, and rear suspension assembly 3 are not limited. In other words, those skilled in the art can install the vehicle underbody protection plate 1 on any vehicle with the above-mentioned structure provided in the relevant technology according to actual usage requirements.

[0031] The connection method between the vehicle underbody protection plate 1 and the battery pack 4, wheel cover 2, and rear suspension assembly 3 is not limited. It can be a snap-fit, adhesive, welding, fastener connection, etc. Alternatively, the vehicle underbody protection plate 1 and one or more of the above structures can form an integral structure.

[0032] The rear suspension assembly 3 here may include, but is not limited to, multi-link suspension, double wishbone suspension, MacPherson strut suspension, etc., as are well known to those skilled in the art. For example, see [reference]. Figure 2 The rear suspension assembly 3 includes a rear suspension guard plate 31 and a swing arm 32. In actual use, the rear suspension guard plate 31, the bottom guard plate of the battery pack 4, and the wheel cover 2 form two installation spaces 3a, and the swing arm 32 is installed in the installation space 3a.

[0033] It should be noted that, Figure 2 The following is only one possible use case of the vehicle underbody protection plate 1 of this application. The rear suspension component 3 adapted to the vehicle underbody protection plate 1 of this application is not limited to the structural form shown in the figure.

[0034] In related technologies, the bottom surface of a vehicle underbody protection plate is typically perpendicular to the vehicle's height (i.e., roughly horizontal). This application proposes that chassis structures such as the rear suspension system are often installed behind the underbody protection plate. Not all components of the rear suspension system are covered by the underbody protection plate; some moving parts (such as the rear control arm 32) are often exposed at the bottom of the vehicle. If the aforementioned flat underbody protection plate is used, airflow will directly impact these moving parts during vehicle operation, creating positive pressure in their area and increasing overall vehicle aerodynamic drag.

[0035] As an example, as mentioned above, the rear suspension assembly 3 contains some moving parts that are not covered by the protective plate. Taking the rear suspension assembly 3, which includes the rear suspension protective plate 31 and the control arm 32, as an example, since the control arm 32 needs to swing during vehicle operation, it is exposed on the underside of the vehicle and is not covered by the rear suspension protective plate 31 or other protective plates. In this case, if a flat protective plate is used in front of the control arm 32, the airflow will directly impact the control arm 32, resulting in an increase in the aerodynamic drag of the entire vehicle.

[0036] Therefore, referring to Figures 1-3 In this embodiment, the exposed surface of the vehicle underbody panel 1 on one side of the vehicle bottom is the bottom surface. The vehicle underbody panel 1 has a middle area 1a and two raised areas 1b. The two raised areas 1b are located at both ends of the vehicle underbody panel 1 along the width direction of the vehicle. The middle area 1a is located between the two raised areas 1b. The bottom surface of the raised areas 1b is higher than the bottom surface of the middle area 1a.

[0037] As an example, the thickness direction of the vehicle underbody protection plate 1 is parallel to the height direction of the vehicle, and the surface of the vehicle underbody protection plate 1 facing the bottom of the vehicle along the thickness direction is exposed at the bottom of the vehicle and formed as the aforementioned bottom surface.

[0038] Here, the specific range of the intermediate zone 1a and the raised zone 1b is not limited. The intermediate zone 1a and the raised zone 1b can be directly connected, or other areas can be set between the intermediate zone 1a and the raised zone 1b.

[0039] As an example, the two raised zones 1b are respectively connected to the opposite ends of the middle zone 1a along the vehicle width direction, in a reference section perpendicular to the vehicle's front-rear direction (e.g. Figure 3In the AA section shown, along the vehicle width direction, the ratio between the length range of the middle section 1a and the total length of the vehicle underbody protection plate 1 is 0.5-0.8, such as 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, etc. The two raised sections 1b have the same length along the vehicle width, and the ratio between the length range of one raised section 1b and the middle section 1a along the vehicle width direction is 0.125-0.5, such as 0.125, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, etc.

[0040] The bottom surface of the raised area 1b is higher than the bottom surface of the middle area 1a. Specifically, the bottom surface of any point in the raised area 1b is higher than the bottom surface of any point in the middle area.

[0041] In this embodiment, the bottom surface of the raised area 1b can be a plane or an arc surface, and the height of the bottom surface at different locations within the raised area 1b can be the same or different. Similarly, the bottom surface of the intermediate area 1a can be a plane or an arc surface, and the height of the bottom surface at different locations within the intermediate area 1a can be the same or different. The maximum height difference between the bottom surface of the raised area 1b and the bottom surface of the intermediate area 1a is not limited. Those skilled in the art can determine a suitable height difference for a specific vehicle model using simulation, experimentation, and other methods.

[0042] It is understood that the other side surface of the vehicle underbody protection plate 1 along the vehicle height direction is the top surface. In this embodiment, the top surface of the raised area 1b and the top surface of the middle area 1a can be flush, or higher or lower than the top surface of the middle area 1a, and there are no restrictions on this.

[0043] In this embodiment, by setting the bottom surface of the raised area 1b to be higher than the bottom surface of the middle area 1a, it helps to guide the airflow on both sides of the vehicle bottom to separate in advance at the raised area 1b, reducing the impact on the rear structure (e.g., the swing arm 32). On the other hand, it helps to accelerate the airflow at the bottom of the middle area 1a (the middle area 1a has a smaller ground clearance in actual use). Overall, it helps to reduce the vehicle's drag coefficient.

[0044] In some embodiments, refer to Figure 3 Along the direction away from the middle zone 1a, the bottom surface of the raised zone 1b gradually rises.

[0045] In other words, the bottom surface of the raised area 1b extends obliquely towards the top side in a direction away from the intermediate area 1a. Here, the angle of inclination between the bottom surface of the raised area 1b and a reference plane perpendicular to the vehicle height direction is not limited; as an example, in a reference section perpendicular to the vehicle's longitudinal direction (e.g., ... Figure 3In the AA section shown, the tilt angle can be 3-

[0046] 30°, but can be 3°, 5°, 8°, 10°, 12°, 15°, 18°, 20°, 25°, 30°, etc.

[0047] In this embodiment, by setting the bottom surface of the raised area 1b to gradually rise, it helps to guide the airflow on both sides to flow towards the middle area 1a, thereby further reducing the impact of the airflow on the moving parts behind, and also helps to further increase the airflow speed at the bottom of the middle area 1a, achieving a better wind resistance reduction effect.

[0048] Of course, in some other embodiments, the bottom surface of the raised area 1b may also be raised in a stepped manner or in an irregular manner along the direction away from the middle area 1a.

[0049] In some embodiments, refer to Figure 3 The bottom surface of the middle region 1a is a plane.

[0050] Here, the bottom surface of the intermediate zone 1a can be a horizontal plane or a non-horizontal plane. For example, along the direction from the front end to the rear end of the vehicle underbody protection plate 1, the bottom surface of the intermediate zone 1a can gradually rise or gradually fall.

[0051] In this embodiment, setting the bottom surface of the middle area 1a as a plane helps to optimize the airflow distribution in the middle area 1a of the vehicle bottom, reduce the probability of turbulence formation, and thus help to further reduce wind resistance.

[0052] In some other embodiments, the bottom surface of the intermediate region 1a may also be non-planar, such as an arc surface, an irregular surface, etc.

[0053] In some embodiments, the rear end of the vehicle underbody 1 forms a first connecting edge 11, and the two opposite ends of the first connecting edge 11 along the vehicle width direction are both located within the boundary of the middle area 1a.

[0054] Here, the first connecting edge 11 is specifically used to connect with the rear vehicle body structure during actual use, such as the connection with the rear suspension guard plate 31 mentioned above. The specific connection method between the first connecting edge 11 and the rear vehicle body structure is not limited, such as bonding, welding, fastener connection, etc., or the first connecting edge 11 and the rear vehicle body structure can form an integral structure.

[0055] As an example, the first connecting edge 11 is used to connect with the rear suspension guard plate 31, and the two ends of the first connecting edge 11 are flush with the two ends of the edge of the rear suspension guard plate 31 used to connect with the vehicle underbody guard plate 1.

[0056] It should be noted that the first connecting edge 11 here refers to the case where both ends of the first connecting edge 11 along the vehicle width direction are located within the boundary of the intermediate area 1a, including the case where the end of the first connecting edge 11 is exactly located on the boundary of the intermediate area 1a.

[0057] In some embodiments, one side surface of the first connecting edge 11 along the vehicle height direction is formed as a first overlapping surface, which is used to overlap with the rear suspension guard plate 31. Here, the top surface of the first connecting edge 11 or the bottom surface of the first connecting edge 11 may be formed as the first overlapping surface.

[0058] In this embodiment, the vehicle underbody protection plate 1 and the rear suspension protection plate 31 overlap, which helps to improve the connection strength between the two.

[0059] In this embodiment, both ends of the first connecting edge 11 are located within the boundary of the middle area 1a. That is, in the vehicle's front-rear direction, the middle area 1a can basically cover the structure behind it (for example, in the orthographic projection along the vehicle's front-rear direction, the projection of the middle area 1a covering the rear suspension guard plate 31). This helps to better guide the airflow at the bottom of the middle area 1a to flow to the bottom surface of the rear vehicle body structure, thereby further reducing wind resistance.

[0060] In some embodiments, refer to Figure 3 The maximum height difference h1 between the bottom surface of the raised area 1b and the bottom surface of the middle area 1a is 10-20mm, such as 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, etc.

[0061] In this embodiment, the height difference within this range helps to achieve a better effect in reducing wind resistance. Both CFD simulation and wind tunnel tests have verified that the vehicle underbody protection plate 1 with a height difference within this range optimizes the overall vehicle drag coefficient by 0.002-0.004.

[0062] In some embodiments, refer to Figure 4 Along the front-rear direction of the vehicle, raise the rear end of area 1b ( Figure 4 The bottom surface of the right end of the middle section is higher than the front end of the raised area 1b. Figure 4 The bottom surface of the left end of the middle.

[0063] In other words, in this embodiment, the bottom surface of the raised area 1b also rises along the direction from front to back of the vehicle. Similarly, along the direction away from the battery pack 4 (i.e., the direction from front to back of the vehicle), the bottom surface of the raised area 1b can rise gradually, in a stepped manner, or irregularly, without limitation.

[0064] In this embodiment, by raising the bottom surface of the raised zone 1b in the front-rear direction of the vehicle, it helps to further guide the airflow to separate in advance at the raised zone 1b, thereby further reducing the drag coefficient.

[0065] In some embodiments, still refer to Figure 4 Along the direction from the front end to the rear end of the vehicle underbody protection plate 1, the bottom surface of the raised area 1b gradually rises. That is, the bottom surface of the raised area 1b extends obliquely towards the top side in a direction away from the battery pack 4. As an example, in a reference section perpendicular to the vehicle width direction (e.g. Figure 4 In the BB section shown, the tilt angle can be 2-20°, such as 2°, 3°, 5°, 8°, 10°, 12°, 15°, 18°, 20°, 25°, 30°, etc. Here, the tilt angle can be smaller than the tilt angle in the reference section perpendicular to the vehicle's front-rear direction mentioned above, or it can be greater than or equal to the tilt angle in the reference section perpendicular to the vehicle's front-rear direction mentioned above; there is no restriction on this.

[0066] In this embodiment, by gradually raising the bottom surface of the raised zone 1b in the direction from the front end to the rear end, it helps to further guide the airflow to separate in advance at the end of the raised zone 1b in the front-rear direction of the vehicle, thereby further reducing the drag coefficient.

[0067] In some embodiments, the maximum height difference h2 between the bottom surface of the rear end of the raised area 1b and the bottom surface of the front end of the raised area 1b is 5-10mm, such as 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc.

[0068] In this embodiment, by using the height difference within the above range, most of the airflow on both sides of the vehicle bottom can be separated in advance at the end of the raised area 1b away from the battery pack 4, thereby further reducing the drag coefficient.

[0069] In some embodiments, refer to Figure 1 and Figure 2 The front end of the vehicle underbody protection plate 1 forms a second connecting edge 12. Along the vehicle width direction, the second connecting edge 12 includes a middle section 121 and two inclined sections 122. The two inclined sections 122 are respectively connected to the opposite ends of the middle section 121 along the vehicle width direction. Along the direction away from the middle section 121, the inclined sections 122 extend inclinedly towards the front.

[0070] Here, the second connecting edge 12 is specifically used to connect with the front vehicle body structure, for example, the second connecting edge 12 is used to connect with the battery pack 4. The specific connection method between the second connecting edge 12 and the front structure is not limited, such as bonding, welding, fastener connection, etc., or the second connecting edge 12 and the front structure (such as the bottom guard plate of the battery pack 4) can form an integral structure.

[0071] It should be noted that in this embodiment, the length range of the middle section 121 along the vehicle width direction is not related to the length range of the middle area 1a along the vehicle width direction. In other words, a part of the middle section 121 can be located in the raised area 1b, or a part of the inclined section 122 can be located in the middle area 1a. Those skilled in the art can specifically determine the length range of the middle section 121 and the inclined section 122 along the vehicle width direction according to the actual connection requirements.

[0072] As an example, the extension direction of the middle section 121 is parallel to the vehicle width direction, and the angle between the inclined section 122 and the vehicle width direction can be 10°-50°, such as 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, etc.

[0073] In this embodiment, by setting the second connecting edge 12 to include two inclined sections 122, it helps to increase the bottom surface area of ​​the vehicle underbody protection plate 1, thereby improving the vehicle underbody protection plate 1's ability to guide airflow. On the other hand, it helps to increase the connection area between the vehicle underbody protection plate 1 and the front structure, thereby improving the connection stability between the two.

[0074] In some embodiments, one side surface of the second connecting edge 12 along the vehicle height direction is formed as a second overlapping surface, which is used to overlap with the front vehicle body structure (e.g., battery pack 4). Here, the top surface of the second connecting edge 12 or the bottom surface of the second connecting edge 12 may be formed as the second overlapping surface.

[0075] In this embodiment, the vehicle underbody protection plate 1 overlaps with the front body structure, which helps to improve the connection strength between the two.

[0076] In some embodiments, refer to Figure 1 and Figure 2 The vehicle underbody protection plate 1 forms a third connecting edge 13 at each of its opposite ends along the vehicle width direction. The third connecting edge 13 is used to connect with the vehicle body structure.

[0077] In some embodiments, the third connecting edge 13 is used to connect with the wheel arch 2, and the third connecting edge 13 extends in a curved manner, thereby increasing the connection area between the vehicle underbody protection plate 1 and the wheel arch 2. As an example, the third connecting edge 13 is contoured to the bottom edge of the wheel arch 2.

[0078] In some embodiments, one side surface of the third connecting edge 13 along the vehicle height direction is formed as a third overlapping surface, which is used to overlap with the wheel arch 2. Here, the third overlapping surface may be formed on the top surface of the third connecting edge 13 or on the bottom surface of the third connecting edge 13.

[0079] It should be noted that the first connecting edge 11, the second connecting edge 12 and the third connecting edge 13 may all form overlapping surfaces, or only one or two of them may form overlapping surfaces, and there is no limitation thereto.

[0080] Embodiments of this application also provide a vehicle, referring to Figure 2 The vehicle includes a vehicle underbody protection plate 1 as described in any of the above embodiments, as well as a rear suspension assembly 3, a battery pack 4, and wheel covers 2. The rear suspension assembly 3 and the battery pack 4 are respectively connected to opposite ends of the vehicle underbody protection plate 1 in the longitudinal direction of the vehicle, and the two wheel covers 2 are respectively connected to opposite ends of the vehicle underbody protection plate 1 in the width direction of the vehicle.

[0081] The vehicle in this embodiment has all the advantages of the vehicle underbody protection plate 1 described in any of the above embodiments, and will not be repeated here.

[0082] In some embodiments, refer to Figure 2 The rear suspension assembly 3 includes a rear suspension guard plate 31 and a swing arm 32. The rear suspension guard plate 31 is connected to the vehicle underbody protection plate 1. The rear suspension guard plate 31, wheel arch 2 and vehicle underbody protection plate 1 enclose an installation space 3a. The swing arm 32 is movably disposed in the installation space 3a. In the orthographic projection along the vehicle's front-rear direction, the projection of the raised area 1b of the vehicle underbody protection plate 1 at least partially overlaps with the projection of the swing arm 32.

[0083] In this embodiment, as mentioned above, the airflow will separate in advance at the end (rear end) of the raised area 1b away from the battery pack 4. This reduces the impact of the airflow on the rear swing arm 32 and helps to reduce the drag coefficient.

[0084] It should be noted that the structure of the rear suspension component 3 is not limited to this. Those skilled in the art can set the rear suspension component 3 to any type of rear suspension known to them, according to actual usage requirements.

[0085] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A vehicle underbody protection plate, characterized in that, The vehicle underbody protection plate has a bottom surface on one side exposed at the bottom of the vehicle. The vehicle underbody protection plate has a middle area and two raised areas. The two raised areas are located at both ends of the vehicle underbody protection plate along the width direction of the vehicle. The middle area is located between the two raised areas. The bottom surface of the raised areas is higher than the bottom surface of the middle area.

2. The vehicle underbody protection plate according to claim 1, characterized in that, Along the direction away from the central region, the bottom surface of the raised region gradually rises.

3. The vehicle underbody protection plate according to claim 1, characterized in that, The bottom surface of the intermediate area is a plane.

4. The vehicle underbody protection plate according to claim 1, characterized in that, The rear end of the vehicle underbody protection plate forms a first connecting edge, and the two opposite ends of the first connecting edge along the vehicle width direction are both located within the boundary of the middle area.

5. The vehicle underbody protection plate according to claim 1, characterized in that, The maximum height difference between the bottom surface of the raised area and the bottom surface of the intermediate area is 10-20mm.

6. The vehicle underbody protection plate according to any one of claims 1-5, characterized in that, Along the longitudinal direction of the vehicle, the bottom surface of the rear end of the raised area is higher than the bottom surface of the front end of the raised area.

7. The vehicle underbody protection plate according to claim 6, characterized in that, Along the direction from the front end to the rear end of the vehicle underbody protection plate, the bottom surface of the raised area gradually rises; and / or The maximum height difference between the bottom surface of the rear end of the raised area and the bottom surface of the front end of the raised area is 5-10 mm.

8. The vehicle underbody protection plate according to any one of claims 1-5 and 7, characterized in that, The front end of the vehicle underbody protection plate forms a second connecting edge. Along the vehicle width direction, the second connecting edge includes a middle section and two inclined sections, the two inclined sections being respectively connected to opposite ends of the middle section along the vehicle width direction, and the inclined sections extending inclinedly towards the front in a direction away from the middle section.

9. A vehicle, characterized in that, The vehicles include: Vehicle underbody protection plate as described in any one of claims 1-8; The rear suspension assembly and battery pack are respectively connected to opposite ends of the vehicle underbody protection plate along the vehicle's longitudinal direction; and Wheel covers are respectively connected to the opposite ends of the vehicle underbody protection plate along the width direction of the vehicle.

10. The vehicle according to claim 9, characterized in that, The rear suspension assembly includes a rear suspension guard plate and a control arm. The rear suspension guard plate is connected to the vehicle underbody protection plate. The rear suspension guard plate, the wheel arch, and the vehicle underbody protection plate form an installation space. The control arm is movably disposed in the installation space. In the orthographic projection along the vehicle's longitudinal direction, the projection of the raised area of ​​the vehicle underbody protection plate at least partially overlaps with the projection of the control arm.

Images